42307931432 has 16 divisors (see below), whose sum is σ = 85429477140. Its totient is φ = 19526737536.

The previous prime is 42307931387. The next prime is 42307931437. The reversal of 42307931432 is 23413970324.

It can be written as a sum of positive squares in 2 ways, for example, as 42265603396 + 42328036 = 205586^2 + 6506^2 .

It is a super-2 number, since 2×42307931432² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42307931437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203403413 + ... + 203403620.

Almost surely, 2^42307931432 is an apocalyptic number.

It is an amenable number.

42307931432 is an abundant number, since it is smaller than the sum of its proper divisors (43121545708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42307931432 is a wasteful number, since it uses less digits than its factorization.

42307931432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406807052 (or 406807048 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 38.

The spelling of 42307931432 in words is "forty-two billion, three hundred seven million, nine hundred thirty-one thousand, four hundred thirty-two".